Since you opened up the gas port then maybe think about a adjustable gas block. That way you can limit the gas flow when you are shooting full power loads. I think being able to control the gas flow would help limit the wear on the weapon especially when you have opened up the gas port and increasing the flow potential. That could potentially wreak havoc with standard ammo. I am sure you want to have the capability to use both in a pinch. It's just a thought and may be worth giving it a shot. Good luck sorting it out.This thing...
It's a work in progress, I opened up the gas port to .108 earlier to increase reliability with unsuppressed subs, definitely heading in the right direction cycles great now, Just doesn't quite lock back the bolt on an empty mag. May open up the port to .115. With all of the quick form 4 approvals lately hopefully I'll have my new can for it soon.
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